<!doctype html>
<html lang="en">
 <head>
  <meta charset="UTF-8">
  <meta name="Generator" content="EditPlus®">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
  <title>Document</title>
 </head>
 <body>
  
 </body>
 <script>
 var a = 80;
 var b= 5/9.0*(80-32);
 b=b.toFixed(2);
 document.write("花氏度"+a+"度"+"摄氏度"+b+"度");
 
 
 
 
 
 
 </script>
</html>
